Lawn-edger.



F. l. HAMA/AAN.

LAWN EDGER.

APPLICATION FILED JUNE Il. |911.

Pawn Dec. 11, 19W..

2 SHEETS-SHEET l.

u 3) 5 ,4 NUE/VD?? F.1.HAWIMAN.

LAWN EDGER. APPLICATION FILED JUNE 11. 1917.

Patented Dec. 11, 191?.

2 SHEETS-SHEET 2.

#VVE/VTC@ 540A J. Hammam @y 2775 ATraQ/VEKJ" t J'. HM, 0F MINNEAPOLIS,MINNESOTA, SSIGNOIM Uli' UNE-1:1 1F ll@ LEON Il'. SCHMITT, OIF MNNEOLIS,MINNESOTA.

' LAWN-EDGE antena..

To all whom it may concfem:

Be it known that l, FRANK J. HAMMAN, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and `State ofMinnesota, have invented certain new and useful lmprovements inLawnlEdgers; and l do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in lthe art to which it appertains to make and use the'sarne. y

My invention has for its object to provide an improved lawn edger in thenature of an attachment to a lawn mower, and by which arrangement thelawn mower may be used to cut the grass simultaneously with the use ofthe edger to trim the edge of a lawn along a sidewalk or elsewhere.

ln the accompanying drawings which illustrate the preferred form of thelawn edging attachment,- like characters indicate like parts throughoutthe several views.

Referring tothe drawin Figure 1 is a plan view s `owing the lawn mowerin dotted lines and showmg the attachment in full plan v-iew; l

Fig. 2 is a vertical section taken through the lawn mower approximatelyon the line 2-2 of Fig. 1;

Fig. 3 is a perspective view of the edge attachment;

Fig. 4 is a detail in vertical section taken approximately on the line4-4 of Fig. 8; and A Fig. 5 is a horizontal section taken on the line5-5 of Fig. 4.

Of the parts of the lawn mower, it is only desirable for the purposes ofthis case to particularly note the mower frame 6, including a transversefront tie bar 6, wheels 7, rotary cutter 8, :tilted cutter blade 9, reargage roller 10 and ush bar l1. My improved I, attachment inc udes a plowblade or mold lill tt fotions 18 and 19 adapt the plow beam,V

board 12 preferably made of temperedsteel and rigidly secured to thelower end of a plow beam or bar,'which, as preferably constructed, ismade u of two members 13 and 14, overlapped an rigidly but adjustablyconnected -by short nut-equipped bolts 15 and 16 that work through erorations 17 in the said bars 13 and 14. he upper end of the bar-14 isforwardly turned and rovided with perforations 18 and 19,A the atter ofwhich, as shownis elongated. These per- Specication of Letters Patent. vllllmltgmttgqll may@ 1m, :1119110 application and June n, i917. seranno. waere. l l

at its upper end, to be rigidly, but detachably secured to the push barI11, by means of forms a connection between the tie bar 6 and theintermediate portion of said low beam. This link 20, at its rear en isshown as flattened andv provided with lotudinally spaced perforations2l, through any one of which and any of thealined perforations 17 of theplow bar, the bolt 16 is adapted to be inserted and pivotally con nectedto said parts. At its front end, the link 20 is flattened and bent tofit the rod 6 and is provided with a clamping plate 22 held thereto byshort nut-equipped bolts 23. When `one of thebolts 23 is removed, theplate 22 can be turned into the position shown by dotted lines in Fig.3, and thereby permit the link 20 to be detached from the bar 6. Here itmay be noted that the entire attachment can be removed from the lawnmower simply by removing one of the bolts 23 and removing the nuts ofthe twobolts 11".

en the device is attached, as shown in the drawings, the point of theplow blade 12 will work just behind the intermediate portion of theroller 10. The depthv of cut of the plow can be varied by adjustments:

`of the beam forming bars 13 and 14, one

versely curved so that its lower end isadapt!` ed to engage, forexample, against one edge of a concretewalk a, andwhen forcedforward,will cut a groove t, and' to turn a sod furrow c over onto the walk, asclearly shown in the drawing. 'llhe intermediate portion of the cutter8, which is just ahead of the plow blade, lwill cnt the grass do toashort length before the plow blade is brought into action on the sod,and this materially reduces the amount of work that has to be done bythe plow blade or mold board. 0f course, the front y: `ofthe plow bladeor mold board 12 souldbe ground er made sharp.

lhe lawn mower aords an exceedingly lill good support for the edger. Inthe first place, it gives a irm support therefor, and in the secondplace, good power is available for pushing the same. The roller 10 actsas a gage roller to limit the depth of cut of the plow blade. Theetliciency of the device has been demonstrated in practice. Obviously,the attachment can be quickly applied to a lawnI mower and quickly andeasily removed therefrom.

What I claim is:

l. The combination with a lawn mowersl having a rearwardly extended pushbar and" a transverse tie bar, of an edger comprising a plow beamsecured to said push bar, a plow blade applied to the lower end of saidplow beam and arran ed to work immedi- I ately at the rear of saidmower, and a link connecting the intermediate portion of said plow beamto the said tie bar, the said pl'ow beam being vertically adjustable.

3. The combination with a lawn mower having a rearwardly extended pushbar and a transverse tie bar, of an edger 'comprising a plow beamsecured to said push bar, a

' plow blade applied to the lower end of said plow beam and arranged towork immediately at the rear of said mower, a link connecting theintermediate portion of said plow beam to the said tie bar, the. saidplow beam being vertically adjustable, and the connection between saidlink and plow beam being also adjustable.

4. The combination with a lawn mower having a rearwardly extended pushbar and a transverse tie rod, of a low beam made up of overlappedlongitudinally adjustable metal straps, the upper end of one of saidstraps being detachably connected to said vvpush bar, a plow bladesecured to the lower j end of the other of said straps and working atthe rear of said mower, and a link adjustably connected at its rear endto the intermediate portion of said plow beam and Elovided at its frontend with means wherey it may-be readily clamped to and disconnected fromthe intermediate portion of said tie rod.

5. The combination with a lawn mower having a transverse tie bar and arearwardly extended push bar, which latter has metal fork straps andbolts connecting the same thereto, of an edger comprising a plow beamsecured at its upper end by the same bolts that connect said push barand its fork straps, a plow secured to the lower end of said beam, and alink connected to the intermediate portion of said plow beam and to Saidtie rod.

In testimony whereof I afiix my signature in presence of two witnesses.

FRANK J. HAMMAN. Witnesses:

FRANK UE'rz, GEO. S. MowERY.

